Installing rear subframe collars on an S13 240sx/180sx/Silvia

(this process is basically the same for most rear wheel drive Nissans)

Here are the subframe collars right out of the box the day they arrived.

They are anodized aluminum with a nice blue finish, too bad you will rarely see them.

 The ones in the upper part of the picture will go on the bottom of the bushings and

the ones on the bubble wrap will go on the top of the bushing.

1. First jack the car up and place it on jack stands. Remember to leave the jack high enough so that you can later put it under the diff to support it.

2. Place the jack under the diff so that the diff is resting on top of the jack.

3. Towards the front of the car there are two 12mm bolts that hold the subframe bushing bracket to the chassis.

Remove these two bolts and the 17mm nut that goes directly under the bushing as pictured below.

The one I am pointing to is the 17mm bolt you need to take off.

The extension off that bracket pictured is the one that bolts to the chassis.

4. Next remove the 17mm nut that holds the subframe bushing toward the rear of the car. Pictured here:

5. Once you have removed all the bolts and nuts on both sides of the car,

 you need to lower the diff by dropping the jack ever so slightly until you have enough room to slip in the collars that go on the top of the bushing.

You might have to drop it quite a bit to get the ones in the front in but do not release all the pressure on the jack.

6. Next you're ready to install the solid bushing inserts on the lower part of the bushing.

Jack the diff up so as to lift the subframe all the way up to the chassis.

This will enable you to put on the lower bushings.

Just slide them in like so and bolt the brackets back on.

Rear By Strut:

Front, towards the cabin area: Notice the brackets that bolt to the chassis.

When you're done everything should look like this. Be sure to torque everything down to 80 lbs or until you just cant turn it anymore!

A couple more shots to show you how it should look when complete:

Thanks to Nightstalker for contributing this article and the photos!